Patent US2761002A successfully refreshed from Google Patents.
US2761002A
Expired / Lapsed
US
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Safety mold chamber for arc melting furnaces
Assignee: Crane Co
•
Filing: 1954-10-21
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Granted: 1956-08-28
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Expires: 1974-10-21
Abstract
No abstract record available.
Inventors
- 👤 Hubert C Laird
- 👤 Kurt B Bredtschneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:09
CPC Classifications
F; F27; F27D; F27D11/00; F27D11/08; B; B22; B22D; B22D23/00; B22D23/06; Y; Y10; Y10S; Y10S266/00; Y10S266/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
IN AN ELECTRIC ARE MELTING FURNACE, THE COMBINATION COMPRISING AT LEAST ONE ELECTRODE MEMBER, MEANS ENERGIZING SAID ELECTRODE MEMBER, AND INGOT FORM MEMBER COOPERATING WITH SAID ELECTRODE MEMBER, SAID INGOT FORM MEMBER HAVING A HOLLOW WALL PORTION DEFINING A FLUIDTIGHT PASSAGEWAY, A COOLING JACKET CONCENTRIC WITH SAID INGOT FORM MEMBER, EXTERIORLY ACCESSIBLE INLETS AND OUTLETS FOR SAID INGOT FORM FLUID TIGHT PASSAGEWAY AND FOR
Claim 2
Dependent Claim
64 words
IN AN ELECTRIC ARE MELTING FURNACE, THE COMBINATION COMPRISING AT LEAST ONE ELECTRODE MEMBER, MEANS ENERGIZING SAID ELECTRODE MEMBER, AND INGOT FORM MEMBER COOPERATING WITH SAID ELECTRODE MEMBER, SAID INGOT FORM MEMBER HAVING A HOLLOW WALL PORTION DEFINING A FLUIDTIGHT PASSAGEWAY, A COOLING JACKET CONCENTRIC WITH SAID INGOT FORM MEMBER, EXTERIORLY ACCESSIBLE INLETS AND OUTLETS FOR SAID INGOT FORM FLUID TIGHT PASSAGEWAY AND FOR
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US2266735A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |